I am using daypilot pro for resource calendar and I want highlight time range of a specific cell either by showing tooltip with min and max time or by highlighting complete cell with a different color.
I'm not sure if this is what you are looking for but you can show a tooltip during time range selecting that will display the start and end of the selection (or any other text, it's fully customizable using onTimeRangeSelecting event handler).
See a demo:
Let me know if it doesn't help.
I am asking you to provide similar solution on hover event .